Suppose that, on average, 4 persons in 1000 makes a numerical error in preparing his or her income tax return. If 10,000 returns are selected at random and examined, find the probability that 6, 7, or 8 of them contain an error

Q: Suppose that a balanced die is tossed once. What is the probability that die lands on 1, given that…

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Q: a coin is tossed three times, what is the probability that the last two tosses do not show the same…

A: If coin is tossed three times, Then sample event are as following : (T,T,T) , (T,T,H) , (T,H,T) ,…

Q: A bag contains 10 red, 5 white and 8 blue balls. If three balls are picked out one at a time at…

A: GivenA bag containsNo.of red balls = 10No.of white balls = 5No.of blue balls=8

Q: According to a study by Oxford University, 75% of all Brits can do routine computations. If an…

A: p = 0.75 n = 11

Q: Suppose that a class contains 15 boys and 30 girls, and that 10 students are to be selected at…

A: If n objects are drawn without replacement from N objects of which a objects are of type 1 and b…

Q: An office receives 20 faxed orders every two hours. What is the probability that it will receive 8…

A: Given: Number of order every two hours = 20 So, number of orders every hour = 202=10 Let X be the…

Q: Suppose that the probability that a child living in an urban area in the United States is obese is…

A: From the given information p = 0.20 and n = 15.

Q: The IRS has determined that 29 % of tax returns contain errors.  Suppose the IRS examines a set of…

A: From the given information, Consider, x be the discrete random variable that denotes the tax returns…

Q: If one card is randomly chosen from a standard deck, what is the probability that a 5 is chosen,…

A: A pack of cards contains 52 cards in total with 13 Spades, 13 Diamond, 13 Hearts & 13 Clubs.

Q: What is the probability two people in a classroom of 25 have the same birthday?

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Q: I Question 48 Kyd and North are playing a game. Kyd selects one card from a standard 52-card deck.…

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Q: Suppose repetitions are not allowed. Randomly pick up a three-digit number that is formed from the…

A: The objective of this question is to find the probability that a randomly picked three-digit number,…

Q: Could the number “0000” appear in a table of random digits? If so, how likely is this?

A: The random numbers consist of 4-digit numbers from 0000 to 9999. The four-digit numbers lie…

Q: Compute the probability that two or more students in a class of 20 students have the same birthday.

A: From the provided information, A class has 20 students. Assume that every year has 365 days. If the…

Q: In 1996, there were 572 homicide deaths in Canada (based on data from Statistics Canada). For a…

A: The objective of this question is to find the probability that there are no homicide deaths in a…

Q: If 10% of the population has a certain characteristic, what is the probability that in a random…

A: n = 10, p = 10% = 0.10, q = 1 - p = 1 - 0.10 = 0.90X ~ Bino(n = 10, p = 0.10)Let X be the number of…

Q: find the probability that exactly 2 of them say job applicants should follow up within two weeks.

A: Let p be the probability that human resource managers say job applicants should follow up within two…

Q: Suppose 30 people are in a room. What is the probability that two of them share thesame birthday?…

A: It is given that 30 people are in a room then we have to find the probability that two of them share…

Q: If a ball is selected at random from an urn containing seven red balls, seven white balls, and six…

A: From given data, we have to find the probability that a ball drawn is a white ball.

Q: The record of weather station shows that out of the past 300 consecutive days, its weather forecasts…

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Q: Assume that when human resource managers are randomly​ selected, 42​% say job applicants should…

A: From the provided information,42% say job applicants should follow up within two weeks that is p =…

Q: calculator is programmed to generate random whole numbers between 1 and 15 inclusive. If one number…

A: Solution

Q: Assume that when adults with smartphones are randomly​ selected, 63​% use them in meetings or…

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Q: Assume that when adults with smartphones are randomly selected, 41% use them in meetings or classes.…

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Q: What is the probability that in four births exactly two girls will be born?

A: probability mass function of B.D is = f ( k ) = ( n  k ) p^k * ( 1- p) ^ n-kwhere       k = number…

Q: Suppose you toss a coin 100 times and get 64 heads and 36 tails. Based on these results, what is the…

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Q: 1. A survey found that one out of four Filipino says he or she has visited a dentist in any given…

A: Binomial Distribution:             It is to obtain the probability of the X successes in N trials,…

Q: (d) How many distinct committees of sizes 2, 3, 4 and 4 can be formed from a collection of 13 people…

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Q: If a single die is rolled seven times, what is the probability it lands on 3 on the second, third,…

A: A single die is rolled seven times.Probability that a die rolled will land on three = 1/6Probability…

Q: A 4-digit PIN is selected. What is the probability that there is exactly one repeated digit and that…

A: In a 4 digit pin each of the positions can be filled with one of the 10 digits. Therefore one…

Q: If the probability of being left handed is 0.23 and the probability of being right handed is 0.77…

A: Let X be the number left handed let p be the probability of being left handed  q be the probability…

Q: assume that when adults with smartphones are randomly selected, 44% use them in meetings or classes.…

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Q: Suppose eight students in a statistics class of 12 students are sophomores. What is the probability…

A: Total students = 12Sophomores = 8 Not sophomores = 12 - 8 = 4

Q: A recent study found that four out of nine houses were underinsured.  If five houses are selected…

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Q: Suppose that 68% of people are left handed. If 24 people are selected at random, what is the…

A: Here, probability that the people are left handed is 0.68 and sample size 'n' is 24.

Q: Suppose there is an average of one error per ten pages in each book published by a particular…

A: (1)   Let us define the random variable Y as the of number of errors and follows Poisson…

Q: Assume that when adults with smartphones are randomly​ selected, 49​% use them in meetings or…

A: